Yeah, Captain Sinclair nabs the infamous "Deathwalker" who's traveling around the galaxy in cognito. She's taking any transport ship she can, but still has her old Dilgar military uniform and stuff. Everyone in the League of Non-Aligned Worlds wants a piece of her for all the medical atrocities she committed.

She leaves B5 on an Earth transport at the end. No Dilgar ships in the whole ep, I don't think.

hmm the ship mentionned in many places on the web, but with no ref for the episode, as many other "less common" ships, like thorun fighter or special vree ships and other minor races fleets. PLus many ships were added later, mainly for board games, I will check my references (ps ifs omeone have some bluprints for thorun dartfighter I'm intersted)

for the shadow planet killer, well, it will be hard. I followed the discussion about dyson spheres in vegatrek mod forum, but I don't know how to make such big structures, and texturing will be an awfull pain maybe by playing with detail maps. Another problem should be the occluder, will it alow far polygons to be drawn?